Rufin saman a kan dunƙule yana da mahimmanci kamar kayan screwr da kansa. Ana ƙirƙira zaren dunƙule ta hanyar yankan ko ƙirƙirar tsarin mashin ɗin, kuma rufin saman yana ba da kariya mai mahimmanci ga ƙulle-ƙulle da zaren.
Don wannan, screws suna amfana sosai daga nau'ikan kayan aikin injiniya da aka keɓance da kowane aikace-aikacen dunƙule don samar da mafi kyawun lalata da kariyar fata.
A taƙaice, ana amfani da suturar saman saman sukurori don ƙara juriya na saman da kuma kare dunƙule daga gazawar da ba ta daɗe ba saboda lalacewa ko tsagewa.
Don haka, menene mafi yawan hanyoyin maganin dunƙulewa? Wadannan su ne mafi yawan hanyoyin magance surkulle:
1. Zinc plating
Mafi na kowa surface jiyya Hanyar gaScrew shine electro galvanizing. Ba wai kawai mai tsada ba ne, har ma yana da kyan gani. Electroplating yana samuwa a cikin baƙar fata da kore na soja. Duk da haka, daya hasara na electro galvanizing shi ne cewa aikin anti-lalata gabaɗaya ne, kuma yana da mafi ƙanƙanta aikin rigakafin lalata na kowane Layer (shafi). Gabaɗaya, screws bayan electro galvanizing na iya wucewa gwajin gishiri mai tsaka tsaki a cikin sa'o'i 72, kuma ana amfani da wakili na musamman don rufewa, ta yadda gwajin gishiri bayan electro galvanizing zai iya wuce fiye da sa'o'i 200, amma ya fi tsada. , costing 5-8 sau kamar yadda general galvanizing.
2. Chromium plating
Rubutun chromium akan maɗauran dunƙule yana da ƙarfi a cikin yanayi, baya canza launi ko rasa haske, yana da babban taurin, kuma yana da juriya ga lalacewa. Ko da yake an fi amfani da murfin chromium azaman suturar ado a kan kayan ɗamara, da wuya a yi amfani da shi a cikin masana'antun da ke buƙatar juriya na lalata. Saboda kyawawan maɗauran chrome plated suna da tsada kamar bakin karfe, yakamata a yi amfani da su kawai lokacin da ƙarfin bakin karfe bai isa ba. Don inganta juriya na lalata chromium plating, jan ƙarfe da nickel yakamata a sanya su kafin a saka chromium plating. Ko da yake murfin chromium na iya jure yanayin zafi na 1200 Fahrenheit (digiri 650 Celsius), yana fama da matsala iri ɗaya na haɓakar hydrogen kamar galvanizing.
3. Azurfa da nickel plating a saman
Shafi na Azurfa don maɗauran dunƙulewayana aiki azaman mai ƙoshin mai don masu ɗaure da kuma hanyar hana lalata. Saboda kudin da ake kashewa, ba a amfani da kusoshi ba, kuma a wasu lokatai ƴan ƙullun ɗin ma an yi su da azurfa. Ko da yake tana daɗaɗawa a cikin iska, azurfa tana aiki a 1600 Fahrenheit. Domin yin aiki a cikin maɗauran zafin jiki da kuma hana dunƙule hadawan abu da iskar shaka, mutane yi amfani da high zafin jiki juriya da lubricating halaye. Fasteners yawanci suna da nickel plated a wurare masu tsayin daka da juriya na lalata. Misali, tashar baturin abin hawa mai shigowa.
4.Sukudi surface jiyyaDacromet
A surface jiyya naDacromet don masu ɗaukar hotoba ya ƙunshe da ɓarnar hydrogen, kuma preload mai ƙarfi a koyaushe yana aiki sosai. Duk da haka, yana ƙazantar da gaske. Ba tare da la'akari da al'amurran da suka shafi chromium da kare muhalli ba, a zahiri ya fi dacewa da babban ƙarfin ƙarfi tare da buƙatun anti-lalata.
5. Surface phosphating
Kodayake phosphorating bai da tsada fiye da galvanizing, yana ba da ƙarancin kariya daga lalata.Screw fastenersyakamata a rinka mai bayan phosphating saboda aikin mai yana da alaƙa da juriya na lalata na'urorin. Aiwatar da man fetur na gabaɗaya bayan phosphating, kuma gwajin feshin gishiri ya kamata ya ɗauki sa'o'i 10 zuwa 20 kawai. Mai ɗaukar nauyi zai iya ɗaukar sa'o'i 72-96 idan an yi amfani da man antirust na gaba, amma farashin ya ninka sau 2-3 fiye da man phosphating. Saboda karfin jujjuyawar su da ƙarfin ƙarfafawa suna da ingantaccen aiki mai kyau, yawancin masana'antar dunƙule kayan aikin masana'antu ana kula da su ta hanyar phosphating + mai. Ana yin aiki akai-akai a ginin masana'antu saboda yana iya gamsar da abubuwan da ake tsammani na ɗaure yayin haɗa sassa da abubuwan haɗin gwiwa. Musamman lokacin da ake haɗa wasu abubuwa masu mahimmanci, wasu sukurori suna amfani da phosphating, wanda kuma zai iya hana batun haɓakar hydrogen. A sakamakon haka, a cikin masana'antu filin, dunƙule tare da wani sa sama da 10.9 ne yawanci phosphated.
Lokacin aikawa: Fabrairu-15-2023